[ 1816882 ] wxListBox::SetSelection() doesn't update the control

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_8_BRANCH@49264 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/gtk/listbox.cpp

@@ -895,6 +895,13 @@ void wxListBox::GtkSetSelection(int n, const bool select, const bool blockEvent)
         gtk_tree_selection_select_iter(selection, &iter);
     else
         gtk_tree_selection_unselect_iter(selection, &iter);
+    
+    GtkTreePath* path = gtk_tree_model_get_path(
+                            GTK_TREE_MODEL(m_liststore), &iter);
+
+    gtk_tree_view_scroll_to_cell(m_treeview, path, NULL, FALSE, 0.0f, 0.0f);
+
+    gtk_tree_path_free(path);
 
     m_blockEvent = false;
 }